Layers are explained in the manual, read refer to
Noaa buoy position layer based on a script that parsed the NOAA data. gpx file bouy_pos.7z
UK Met Office forecast areas made manually with tracks and waypoints. gpx file Uk_fcst-areas.7z
Some offshore wind farm areas. A kml file converted with gpsbabel.gpx file NEUoffshore_windfarms.7z
Much more on this site www.justmagic.com/GM-GE.html
Note that far from all kmz/kml are suitable for conversion. gpx file WEEZ.7z
QLD Coastal Marine Parks by Reddog
These .gpx files have been created from coordinates provide by the QLD Government. The target areas are the Great Barrier Reef Marine Park (GBRMP), Great Sandy Marine Park (GSMP) and Moreton Bay Marine Park (MBMP). The Activities Guide provides information of allowable activities for each zone.
Africa and West Asia.
Antarctica
Australia
Canada
Central America
Dutch Overseas Territories
Europe Northern Part
Europe Southern Part
France North Atlantic area
France Mediterranean area
France Overseas Territories
Norwegian Overseas Territory
Pacific Islands
Russia
South America
South and East Asia
UK and Channel Islands
UK Overseas Territories
USA including Overseas Territories